Gates 19625 HVAC Heater Hose

Gates 19625 Molded Heater Hose Overview

The Gates 19625 molded heater hose is an OEM-style coolant hose built for tight engine bays where a straight hose will not route cleanly. With a 0.75 in. (19 mm) inside diameter at both ends and a 10.6 in. (269 mm) centerline length, it is shaped for direct routing in heater and coolant circuits on select INFINITI, Nissan, Buick, Cadillac, Chevrolet, Ford, and Mercury applications.

Made from EPDM, this molded heater hose is approved for coolant, water, air, and marine applications. Gates Molded Heater Hose line focuses on factory-molded routing for smaller, tighter-fitting engine compartments, helping maintain the original hose path on vehicles such as the INFINITI Q50, Nissan 370Z, and G37.

Key Features

• Gates part number 19625
• OEM-style molded heater hose for precise routing
• EPDM construction for coolant, water, and air service
• 0.75 in. / 19 mm inside diameter at both ends
• 10.6 in. / 269 mm centerline length
• Factory-molded shape for compact engine compartments
• Approved for marine applications

Detailed Product Description

The Gates 19625 is a molded HVAC heater hose engineered to follow the original hose path in applications where space is limited. Its molded design supports clean routing between the heater core, engine, connector, or pipe locations, depending on the vehicle. This makes it a practical replacement for fitments such as 2014-2015 INFINITI Q50, Heater Core Inlet To Engine; 2009-2017 Nissan 370Z, Tee To Engine; and 2008-2010 INFINITI G37, Connector To Engine. This part cross-references Dayco 88371 and Four Seasons 86061 for the same application.

As a Gates molded heater hose, part number 19625 is built for direct replacement use where the original hose requires a formed bend rather than a universal straight section. It is also listed across multiple OE-style interchange numbers, supporting service work on select heater and coolant hose routes in INFINITI Q70, Q70L, QX50, Q40, and related platforms.

Common Problems This Hose Can Address

• Cracked or leaking molded heater hose sections
• Collapsed hose routing in tight engine compartments
• Coolant seepage at heater core inlet or engine connections
• Improper hose fit after previous repair work
• Degraded EPDM hose material from age and heat exposure

Installation Notes and Tips

Verify end diameters, centerline length, and molded shape against the original hose before installation. Confirm the routing path and connection points on the vehicle, especially on applications listed as heater core inlet to engine, connector to engine, tee to engine, or crossover pipe to connector. Inspect adjoining clamps, pipes, and fittings for wear or corrosion before installing Gates 19625.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement built to match factory routing requirements. The EPDM construction and molded form support dependable service in coolant and heater hose applications, including select marine-rated uses.

Compatible Vehicles

• Fits 2014-2017 INFINITI Q70, Heater Core Inlet To Engine
• Fits 2015-2017 INFINITI Q70L, Heater Core Inlet To Engine
• Fits 2016-2017 INFINITI QX50, Connector To Pipe
• Fits 2009-2017 Nissan 370Z, Tee To Engine
• Fits 2015 INFINITI Q40, Heater Core Inlet To Engine
• Fits 2014-2015 INFINITI Q50, Connector To Engine
• Fits 2014-2015 INFINITI Q50, Heater Core Inlet To Engine
• Fits 2014-2015 INFINITI Q60, Heater Core Inlet To Engine
• Fits 2013 INFINITI G37, Heater Core Inlet To Engine
• Fits 2011-2013 INFINITI M37, Crossover Pipe To Connector
• Fits 2008-2012 INFINITI EX35, Connector To Engine
• Fits 2009-2012 INFINITI FX35, Connector To Engine
• Fits 2011-2012 INFINITI G25, Tee To Engine
• Fits 2011-2012 INFINITI G37, Heater Inlet (Front)
• Fits 2008-2010 INFINITI G37, Connector To Engine
• Fits 2007-2008 INFINITI G35, Connector To Engine
• Fits 1994-1996 Buick Roadmaster, Tee To Tank
• Fits 1994-1996 Cadillac Commercial Chassis, Tee To Tank
• Fits 1994-1996 Cadillac Fleetwood, Tee To Tank
• Fits 1994-1996 Chevrolet Caprice, Tee To Tank
• Fits 1994-1996 Chevrolet Impala, Tee To Tank
• Fits 1995 Buick Regal, Pipe-2 To Pipe-3
• Fits 1994 Buick Regal, Pipe-2 To Pipe-3
• Fits 1994 Chevrolet Commercial Chassis, Tee To Tank
• Fits 1991-1993 Buick Regal, Pipe-1 To Water Pump
• Fits 1991-1993 Ford Cougar, Heater To Pipe-2
• Fits 1991-1993 Ford Thunderbird, Heater To Pipe-2
• Fits 1991-1993 Mercury Cougar, Heater To Pipe-2
• Fits 1990 Buick Regal, Pipe-1 To Water Pump